Hi Nick, Very nice find! These look like they might have been very early test runs while they were working the kinks out of the manufacturing process. The fine wire anode is a giveaway where they haven't committed to stamping out final versions of a metal screen and the idea that they were a test production run. Do they look any different when illuminated? If there is a page devoted to IN-18 tubes and variations, these definitely should get some coverage.
Thanks for sharing! Jeff Walton -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Nicholas Stock Sent: Tuesday, December 20, 2016 11:30 PM To: [email protected] Subject: [neonixie-l] 1971 IN18 Here's some more photos. Can you guess what's different about them apart from what's already been mentioned? -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5EAB829F-18D6-43AA-BC72-0D92CE2A7066%40gmail.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/585a2d11.44a56b0a.a56f9.5d2b%40mx.google.com. For more options, visit https://groups.google.com/d/optout.
